From task + -less. (US) IPA(key): /ˈtæskləs/ <span class="searchmatch">taskless</span> (not comparable) Without a task....
From <span class="searchmatch">taskless</span> + -ness. <span class="searchmatch">tasklessness</span> (uncountable) Absence of tasks....
taskable taskbar task control task failed successfully task-force task force <span class="searchmatch">taskless</span> tasklet task manager taskmaster task-negative task-oriented task-positive...